The reason I ask about specifics is two fold. This forum is pretty much all about TMI, and there may be some corollary to others, depending on the answer.
My wife has almost no feelings in her vagina, for instance. She only vaguely feels penetration during vaginal sex. She's always been that way, though. It was not something which changed after childbirth. I would think a woman like her could be labeled as having no feelings down there if a man only wanted to have vaginal sex with her.
In my wife's case her clitoris is sensitive, although from my limited experience my wife is quite a bit less sensitive than other women.
If a woman where like my wife, for instance, and a man where not quite attentive to discovering her sexual thoughts and physically stimulating her just right, I could see how he would think she doesn't have any feelings.
It feels very awkward for me to say any of this...
During vaginal penetration I feel nothing. Sometimes I can't tell if he's in or not, and size isn't a problem. I either feel nothing at all or pressure/stretching feeling. No pleasure or pain, unless he hits my cervix. Twice since we've been together I had pleasure in the same position both times, but we've never been able to recreate that. Rhythm is really hard for me because I can barely feel what is going on. Faking it (he knows but still likes it) is a bit hard as well. It isn't a tightness issue because he has no problems and has said it's one of the tightest he's "been in". He wasn't lying because he has no filter, just spews things out. I can't remember why he said it but he decided he needed to let me know that "based on his experience the outside/vulva of mine is average/most common type, no offence". I wouldn't have taken offence if he didn't say "no offence".
With my clitoris, it just hurts... Or if it decides not to hurt that day, I can feel it being touched but no pleasure at all. The only pleasure that I can experience is pretty mild and it's from putting a very strong, large in diameter vibrator above my clitoris, which targets the area under it. I can't orgasm from it but maybe 50% of the time it feels okay.
My husband doesn't (well didn't use to) just stick it in and go. He spent a lot of time trying to get me into it, kissing and touching me everywhere, talking to me, trying to get my mind into it first. Since my issues started over a decade ago I've orgasmed 3 or 4 times. Not with my husband, and I barely noticed. The man I was with had to point it out.